Timer action is not called and event mail is also not fired

[arunkumardsrc]

Hi,
In a task-node I configured a timer with action. When timer executes the action class is not getting called. Also I have a event configured on which I am trying to send mail which is not happening as expected. But below the same event under mail I have a script with SOP, which I printed, in my log file. I don't know weather I am missing any configuration can any one pls help. I have the code sample, which I have configured.

<task-node name="timer">
<task name="task-assign" notify="true">
<assignment class="com.myconpany.handler.MailHandler"></assignment>
</task>
<event type="node-leave">
<mail name="task-assign" actors="arunkumar at yourcompany.com" >
<subject>readmylips</subject>
<text>nomoretaxes</text>
</mail>
<script>
System.out.println(&quot;to escalated&quot;);
</script>
</event>
<timer duedate="7 seconds" name="timer" transition="to somenode">
<action class="com.youcomapny.handler.CustomMailHandler"></action>
</timer>
<transition to="isapprove" name="to isTsmRoleApprvlornot"></transition>
<transition to="somenode" name="to somenode"></transition>
</task-node>

Thanks in advance.